Improvement in sash-balances



- naar sata @anni (time CH'ARLES'RQRAND, 0F DUBUQUE, IOWA.

Letters Patent No. 110,159, dated December 13,1870.

IMPROVEMENT IN .'SASH-BLANCES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it mmf concern:

Be it known 'that I, CHARLES R. RAND, of Duof the wheels in the case about which the cord connecting the sashpasses.

In the drawing- Figure l is a perspective view of a portion of the sash and window-trame, with `my device inserted therein; Y

Figure 2 is a front view of my device;

Figure 3 is a longitudinal vertical section of the same, as shown in iig. 2;

Figure 4 is a side view of my device;

Figure 5 is a longitudinal vertical section Vof the same, as shown in tig. 4; and

Figure 6 -is a top plan view.

In constructing my device for hangingraud balancing sash I make a metal case, A, of any size desired, and in the formclearly shown in gs. 2 and 4.-

The face B of this case is held in place by a screw, a, which passes through the same andfastens the parts firmly together.

In this face are two oblong openings, b and c, parallel with each other, with tapering grooves, d and e, extending from their lower ends, respectively, as shown in figs. 2 and 5, and also a curved opening, f, extend- .ing crosswise, as shown, the said opening heilig art having their bearings therein, as shown in figs. 3 and 4, and so as to turn at right angles to the face of the case, while the larger one, E, is mounted below and in the rear of the smaller ones, and so-as to turn parallel with the face, as shown in figs. 2, 3, 4, 5, and 6, and also so that its` groove shall he concentric with the grooves of the smaller pulleys, as shown in fig. 6. The case A, with its pulleys thus mounted therein, is insrted into the side ot' a window-frame, F, as shown in g. 1. 1

A'cord, h, is attached at one end to the lowersash G, its other-end is passed overfthe small pulley D, then down around the large pulley E, .then up over the small pulley O, and then out of the'case and connected to the upper sash H, as partially shown in figs.

The edges of thesash are provided with a groove in which the cord enters, andin this groove there may be an adjustable block, I, as shown in dotted lines in fig. 1, to which the cord can be attached and thus lengthened or shortened as desired.

The o blong openings allow the small wheels to he taken out at any time for adjust-ing the cord or for other purposes, while the curved opening permits access to the larger wheel for the purpose of passing and adjusting the cord about it, as desired.

I am aware that three rollers have been arranged in a case inserted in the side oi' the sash-frame near the lineof the meeting-rails of the sash, about which the cords attached to the sash passed ,but these I do not claim.

Having thus described my invent-ion,

What I claim is- A device for balancing sash, consisting of the case A, having the small pulleys C and D and the large pulley E mounted therein, in the relative positions shown and described, and also having in its front face the openings b and c for the passage of the cord and insertion or removal of' the small pulleys, -as set forth. l

CHARLES It. RAND.,

Witnesses H. B. MUNN, PHIL. T. DODGE. 

